How to Replace Spark Plugs in a Prado?
2 Answers
Prado spark plug replacement procedure: Open the hood, lift off the plastic engine cover, remove the high-voltage ignition wires, and mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. During removal, check for external debris like leaves or dust and ensure thorough cleaning. Place the new spark plugs into the holes, hand-tighten them for a few turns before using the socket wrench. Reinstall the high-voltage ignition wires according to the firing order and secure the cover plate. Spark plug replacement interval: Under normal maintenance conditions, replace every 40,000-60,000 km. However, this may vary depending on brands and engine types. Always consult the owner's manual. Maintenance reference standards: platinum spark plugs at 40,000 km, standard nickel alloy spark plugs at 20,000 km, and iridium spark plugs at 60,000-80,000 km.
As a frequent DIY car repairer and Prado owner, I'd like to share my experience: Spark plug replacement is quite simple. First, pop open the hood and disconnect the battery's negative terminal for safety. Then remove the ignition coil or related wires, and slowly unscrew the old spark plug using a dedicated spark plug socket. Be careful not to let dust fall into the cylinder when removing it, as this can damage the engine. Before installing the new spark plug, check the gap and apply some anti-seize compound for better rust prevention. Tighten it to about 25 N·m using a torque wrench - over-tightening may cause breakage. After completion, reassemble all components and start the engine to test for smooth idling. I recommend replacing them every 40,000 km to save money and boost performance. Extra Tip: Keep a small toolkit in your car for emergency breakdowns during long trips. Regular maintenance can reduce fuel consumption and vibration, keeping your beloved vehicle running smoothly.
